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    • 5. 发明授权
    • Oxidative removal of aqueous cyanide by manganese(IV)-containing oxides
    • 通过含锰(IV)的氧化物氧化除去氰化水溶液
    • US5705078A
    • 1998-01-06
    • US707985
    • 1996-08-23
    • Paul R. KurekTom N. KalnesGregory John Lewis
    • Paul R. KurekTom N. KalnesGregory John Lewis
    • C02F1/72C02F1/74C02F1/78
    • C02F1/74C02F1/725C02F1/722C02F1/78C02F2101/18Y10S210/904
    • Manganese(IV)-containing oxides are effective catalysts for oxidation of water-soluble cyanide over a wide pH range (0.5-12) and temperature (15.degree.-250.degree. C.). Oxygen is the preferred oxidizing agent at partial pressures between about 0.2 and 5 atmospheres (2.9-75 psi, 20-517 kPa). Electrolytically deposited MnO.sub.2 is one preferred form of the catalyst. Another preferred manganese(IV)-containing oxide is the group of cation-stabilized manganese(IV)-containing oxides illustrated by cryptomelane. Yet another preferred form of manganese(IV)-containing oxide is a group of crystalline manganese phosphate compositions having an extended network and an empirical composition on an anhydrous basis expressed by an empirical formula of: (A.sup.a+).sub.v (Mn.sup.b+)(M.sup.c+).sub.x P.sub.y O.sub.z where A is a templating agent selected from the group consisting of alkali metals, alkaline earth metals, hydronium ion, ammonium ion, organoammonium ions, and mixtures thereof, "a" represents a weighted average valence of A and varies from 1.0 to 2.0, "v" is the mole ratio of A to Mn and varies from about 0.1 to about 5, "b" is the average valence of Mn and has a value of greater than 3 to about 4, M is a metal selected from the group consisting of Al, Fe.sup.3+, Ca, Sn.sup.4+, Ti, Sb.sup.5+, and mixtures thereof, "x" is the mole ratio of M to Mn and varies from 0 to about 3.0, "c" is the weighted average valence of M and varies from about 1.0 to about 5.0, "y" is the mole ratio of P to Mn and varies from about 0.10 to about 5.0 and "z" is the mole ratio of O to Mn and has a value determined by the equation z=1/2(a.times.v+b+x.times.c+5.times.y).
    • 含有锰(IV)的氧化物是在宽pH范围(0.5-12)和温度(15-250℃)下氧化水溶性氰化物的有效催化剂。 在约0.2和5个大气压(2.9-75psi,20-517kPa)之间的分压下,氧气是优选的氧化剂。 电解沉积的MnO 2是催化剂的一种优选形式。 另一种优选的含有锰(Ⅳ)的氧化物是由赤藓烷所示的阳离子稳定化的含锰(Ⅳ)的氧化物。 另一种优选形式的含锰(IV)的氧化物是一组结晶磷酸锰组合物,其具有延伸的网络和无水基础上的经验组成,其经验式为:(Aa +)v(Mnb +)(Mc +)xPyOz A是选自碱金属,碱土金属,水合氢离子,铵离子,有机铵离子及其混合物的模板剂,“a”表示A的加权平均化合价,为1.0至2.0,“v “是A与Mn的摩尔比,在约0.1至约5之间变化,”b“是Mn的平均化合价并且具有大于3至约4的值,M是选自Al ,Fe 3+,Ca,Sn 4+,Ti,Sb 5+及其混合物,“x”是M与Mn的摩尔比,从0变化到约3.0,“c”是M的加权平均价, 约5.0,“y”是P与Mn的摩尔比,约0.10至约5.0,“z”是mo O与Mn的比值,并且具有由方程z = + E,fra 1/2 + EE(axv + b + xxc + 5xy)确定的值。
    • 6. 发明授权
    • Process for hydrotreating an organic feedstock containing a halogenated
component and contaminated with distillable oxygen and nitrogen
compounds having boiling points lower than the halogenated compounds
    • 加氢处理含有卤化成分并受沸点低于卤代化合物的可蒸馏氧和氮化合物污染的有机原料的方法
    • US5773549A
    • 1998-06-30
    • US822532
    • 1997-03-24
    • Mark D. MoserTom N. KalnesChwu-Ching Jan
    • Mark D. MoserTom N. KalnesChwu-Ching Jan
    • C10G45/02
    • C10G45/02
    • The invention provides a process for hydrotreating an organic feedstock containing a halogenated component and contaminated with distillable oxygen compounds, and/or distillable nitrogen compounds having boiling points lower than the halogenated compounds by means of removing the distillable oxygen compounds and distillable nitrogen compounds with a fractionation zone and then contacting the resulting organic feedstock having a reduced concentration of distillable oxygen and nitrogen compounds and a gaseous recycle stream containing hydrogen with a hydrogenation catalyst in a hydrogenation reaction zone to produce an anhydrous liquid stream comprising hydrogenated hydrocarbonaceous compounds having a reduced concentration of organic halide and a hydrogen halide compound. The resulting effluent from the hydrogenation zone is optionally separated to produce a hydrogenated hydrocarbonaceous stream having a reduced level of halogen and an anhydrous stream comprising a hydrogen halide compound.
    • 本发明提供了一种加氢处理含有卤化组分并被可蒸馏的氧化合物和/或可蒸馏的氮化合物加热处理的方法,其中沸点低于卤代化合物,通过用分馏法除去可蒸馏的氧化合物和可蒸馏的氮化合物 然后在氢化反应区中将具有降低浓度的可蒸馏氧和氮化合物的所得有机原料与含氢的气态再循环料流与氢化催化剂接触,以产生包含具有降低的有机物浓度的氢化烃类化合物的无水液体料流 卤化物和卤化氢化合物。 任选分离来自加氢区的所得流出物,以产生具有降低的卤素含量的氢化烃流和包含卤化氢化合物的无水流。